There is a lot of gear resistance, so it it not as smooth-running as what you might think. 1st gear and 2nd gear are for display only... There is so much resistance that when moving the car they slip. Will post more pics of the car's structure.

4 speed gearbox? For real? If you made a 4-speed manual tranny out of Technic pieces, then I sure as heck hope you get a lot publicity than this. I've been working my way up to this kind of thing for years and I haven't even successfully hooked up a steerable 1-speed 4x4. My hat is off to you, sir.